EP0764487A1 - Préparation d'ébauches métalliques sans moule - Google Patents
Préparation d'ébauches métalliques sans moule Download PDFInfo
- Publication number
- EP0764487A1 EP0764487A1 EP96111522A EP96111522A EP0764487A1 EP 0764487 A1 EP0764487 A1 EP 0764487A1 EP 96111522 A EP96111522 A EP 96111522A EP 96111522 A EP96111522 A EP 96111522A EP 0764487 A1 EP0764487 A1 EP 0764487A1
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- EP
- European Patent Office
- Prior art keywords
- powder
- preform
- support
- preform part
- polymer binder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010100 freeform fabrication Methods 0.000 title claims abstract description 12
- 239000000843 powder Substances 0.000 claims abstract description 123
- 238000000034 method Methods 0.000 claims abstract description 63
- 238000002844 melting Methods 0.000 claims abstract description 39
- 230000008018 melting Effects 0.000 claims abstract description 39
- 238000005245 sintering Methods 0.000 claims abstract description 31
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 239000000203 mixture Substances 0.000 claims abstract description 27
- 239000010953 base metal Substances 0.000 claims abstract description 26
- 229910052751 metal Inorganic materials 0.000 claims abstract description 26
- 230000001052 transient effect Effects 0.000 claims abstract description 26
- 239000002184 metal Substances 0.000 claims abstract description 24
- 229920005596 polymer binder Polymers 0.000 claims abstract description 24
- 239000002491 polymer binding agent Substances 0.000 claims abstract description 24
- 229920000642 polymer Polymers 0.000 claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000000265 homogenisation Methods 0.000 claims abstract description 7
- 238000001513 hot isostatic pressing Methods 0.000 claims abstract description 5
- 239000000126 substance Substances 0.000 claims abstract description 4
- 239000004677 Nylon Substances 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 229920001778 nylon Polymers 0.000 claims description 7
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 4
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 claims description 4
- 229910052582 BN Inorganic materials 0.000 claims description 3
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 3
- 229910000907 nickel aluminide Inorganic materials 0.000 claims description 3
- 239000012798 spherical particle Substances 0.000 claims description 3
- 238000003892 spreading Methods 0.000 claims description 3
- 230000007480 spreading Effects 0.000 claims description 3
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 36
- 239000000956 alloy Substances 0.000 abstract description 24
- 229910045601 alloy Inorganic materials 0.000 abstract description 24
- 238000000280 densification Methods 0.000 abstract description 21
- 239000000470 constituent Substances 0.000 abstract description 13
- 229910001092 metal group alloy Inorganic materials 0.000 abstract description 9
- 238000011960 computer-aided design Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 7
- 230000008030 elimination Effects 0.000 abstract description 7
- 238000003379 elimination reaction Methods 0.000 abstract description 7
- 239000011230 binding agent Substances 0.000 abstract description 5
- 239000002923 metal particle Substances 0.000 abstract description 5
- 238000010923 batch production Methods 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract description 3
- 238000000110 selective laser sintering Methods 0.000 description 24
- 239000010410 layer Substances 0.000 description 20
- 239000002245 particle Substances 0.000 description 10
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 9
- 229910052796 boron Inorganic materials 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 239000007787 solid Substances 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 239000007791 liquid phase Substances 0.000 description 5
- 229910001338 liquidmetal Inorganic materials 0.000 description 5
- 238000005336 cracking Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 238000005275 alloying Methods 0.000 description 3
- 230000000994 depressogenic effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000990 Ni alloy Chemical group 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 210000003739 neck Anatomy 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000010943 off-gassing Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000003134 recirculating effect Effects 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 229910000601 superalloy Inorganic materials 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910000851 Alloy steel Chemical group 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical group [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/09—Mixtures of metallic powders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/10—Formation of a green body
- B22F10/16—Formation of a green body by embedding the binder within the powder bed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/30—Process control
- B22F10/34—Process control of powder characteristics, e.g. density, oxidation or flowability
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/40—Structures for supporting workpieces or articles during manufacture and removed afterwards
- B22F10/43—Structures for supporting workpieces or articles during manufacture and removed afterwards characterised by material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
- B33Y40/20—Post-treatment, e.g. curing, coating or polishing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/30—Process control
- B22F10/37—Process control of powder bed aspects, e.g. density
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/40—Structures for supporting workpieces or articles during manufacture and removed afterwards
- B22F10/47—Structures for supporting workpieces or articles during manufacture and removed afterwards characterised by structural features
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F2003/1042—Sintering only with support for articles to be sintered
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2503/00—Use of resin-bonded materials as filler
- B29K2503/04—Inorganic materials
- B29K2503/06—Metal powders, metal carbides or the like
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Definitions
- the present invention relates to methods of free form fabrication and, in particular, to a method of free form fabrication of metallic components using selective laser binding and transient liquid sintering of blended powders.
- a single layer of powder having the base alloy composition of the metallic component such as Haynes 230 superalloy, for example, was spread in a thickness equivalent to 85% of a single layer segment in a two-dimensional laminate component build-up process.
- a second layer of depressed melting temperature powder such as Haynes 230 alloy with 3% boron by weight, for example, was spread over the first powder layer to a thickness equivalent to the final 15% of the complete layer of the stereo lithographic segment of the component.
- the powder layers were pre-heated in an inert environment to a temperature just below the melting temperature of the top powder layer.
- a sufficiently intense laser beam was focused on selected areas of the top layer to melt the top powder.
- the liquid metal rapidly wicked into the powder layer immediately below and isothermally solidified as the melting temperature depressant (boron, in this example) diffused out of the liquid phase into the solid powder.
- This process rapidly produced a nearly fully dense segment of the component.
- Fresh powder layers were then spread on top and the process repeated to progressively build up the complete solid component layer-by-layer according to computer-aided design data.
- a final hot isostatic pressure (HIP) treatment was used to close the small amount of isolated porosity.
- a limitation of the foregoing process using conventional equipment is that the temperature of the powder bed cannot be raised easily above about 200°C.
- the laser beam must raise the temperature of the top layer of powder to above its melting point, typically in excess of 1000°C.
- the component is subjected to severe temperature gradients that produce residual stresses and distortion of the component as it is being built up.
- a polymer powder was blended with a metal powder.
- Selective laser sintering as described above, was then used to melt the polymer powder constituent.
- the melted polymer bound the metal powder in place, layer-by-layer, to form a solid, but porous object.
- the component was heated to burn out the polymer binder, it was subjected to partial (solid state) sintering to impart residual strength to the remaining metal powder for subsequent densification.
- the partially sintered component was then densified by infiltration with a lower melting point liquid metal (such as copper for a steel powder part, for example) or by hot isostatic pressing (HIP), which required some form of encapsulation to transfer the HIP gas pressure to the porous component.
- a lower melting point liquid metal such as copper for a steel powder part, for example
- HIP hot isostatic pressing
- the present invention comprises a method of free form fabrication of metallic components by selective laser sintering (SLS) of blended powders, typically using computer aided design (CAD) data.
- the blended powder used in the present method comprises a parent or base metal alloy that constitutes approximately 75-85% of the total blend; a lower melting temperature metal powder, typically comprising an alloy of the base metal, that constitutes approximately 5-15% of the total blend; and a polymer binder that constitutes approximately 5-15% of the total blend.
- the powder blend may be used in a conventional SLS apparatus to build up a preform part, layer-by-layer, by localized laser melting of the polymer constituent of the powder, which rapidly resolidifies to bind the metal particles of the powder with connecting necks or bridges.
- the polymer constituent comprises a fine, high purity, spherical particle nylon powder.
- the binder is eliminated in a vacuum furnace at elevated temperature and low atmospheric pressure.
- the polymer sintered powder morphology of the present process provides open, connected pores for easy flow of the polymer vapor to the surface of the preform part without build up of local pockets of vapor pressure that might damage the part.
- a supporting powder such as a ceramic powder, for example
- the support powder comprises fine, spherical grains that flow easily and provide continuous support for all regions of the densifying part to prevent cracking or slumping under gravitational forces.
- An alternate method of providing support for the preform part is to fabricate preform ("green"; i.e., not densified) support tooling comprising structurally supporting shapes.
- the green support tooling may be fabricated by SLS at the same time as the preform part by using volumes of the blended powder not needed for the part. If the support tooling requires large volumes of expensive alloy powder, the support tooling can be made in a separate SLS process using less expensive alloy powders.
- the green support tooling may be sprayed with a fine coating of alumina or yttria powder (for example) to prevent the supporting shapes from adhering to the preform part during the transient liquid sintering densification process.
- the green tooling which comprises preform material (i.e., not densified) having substantially the same shrink rate as the preform part, may be placed under and around the part as necessary to provide structural support during the densification process.
- the same vacuum furnace used for binder removal is generally be used for transient liquid sintering and densification of the supported part by controlled heat treatment. Controlled heat up rates and isothermal hold times within a narrow temperature range cause transient liquid sintering of the part to near full density with the desired shape and dimensional tolerances.
- the maximum isothermal hold temperature for the part is above the melting point of the lower temperature alloy but below the melting point of the base metal alloy.
- the densified part may be subjected to a hot isostatic pressing (HIP) treatment.
- HIP treatment may be necessary to close residual porosity and complete the chemical homogenization of the part, particularly with respect to the temperature lowering component of the alloy. Elimination of residual porosity is important to improve fatigue properties of the part, and homogenization of the alloy can improve the properties of ambient temperature ductility, toughness, and high temperature strength.
- a principal object of the invention is rapid free form fabrication of metallic components.
- a feature of the invention is selective laser binding and transient liquid sintering of a powder blend containing a base metal, a lower melting temperature metal, and a polymer binder.
- An advantage of the invention is rapid production of complex shaped metal prototypes and complete small batch production runs of high cost metal components without the need for tooling or machining.
- the present invention comprises a method of free form fabrication of metallic components by selective laser binding and transient liquid sintering of blended powders.
- the method which may use computer aided design data directly from a computer processor, has utility for rapid production of complex shaped metal prototypes and for complete small batch production runs of high cost components or dies without the need for special tooling or machining operations.
- One powder comprises the desired parent or base metal alloy, such as nickel-based Haynes 230 superalloy, as an example, that constitutes approximately 75-85% (preferably about 82%) of the total powder blend.
- the base metal may be selected from metallic elements, such as nickel, iron, cobalt, copper, tungsten, molybdenum, rhenium, titanium, and aluminum, for example, that can be formed into suitable powders and subsequently densified by a transient liquid sintering process.
- a second powder which constitutes approximately 5-15% (preferably about 10%) of the total blend, generally comprises the same base metal alloy as the first powder but with a sufficient amount of an alloying element, such as boron (typically about 3-4%), for example, added to lower the melting point of the alloy by at least about 200°C, and preferably by 300-400°C.
- an alloying element such as boron (typically about 3-4%), for example, added to lower the melting point of the alloy by at least about 200°C, and preferably by 300-400°C.
- Other alloying elements that may be used as melting point depressants include, for example, silicon, carbon, phosphorus, and a large number of metallic elements that form low melting point eutectic compositions with the various base metals described above (such as magnesium with aluminum, for example).
- the average particle size of the metal powders is generally in the range of about 1-55 ⁇ m (preferably in the range of about 25-55 ⁇ m), and may be specified as -325 mesh, for example.
- a third powder, which constitutes approximately 5-15% (preferably about 8%) of the total blend, comprises a polymer binder.
- the average particle size of the polymer binder powder is generally in the range of 1-50 ⁇ m (preferably in the range of about 3-8 ⁇ m). It should be noted that the present process is applicable to other materials and compositions, and one skilled in the art will understand that the alloys, blend percentages, and temperatures described herein are presented as examples and not limitations of the present invention.
- FIG. 1 shows a side cross-sectional view of an SLS apparatus 10 and a part 15 undergoing fabrication.
- SLS apparatus 10 includes side walls 12 and a platform or table 14.
- Table 14 may be heated with coils 16, for example, embedded in table 14.
- Table 14 may be constructed to descend incrementally within walls 12 to form a cavity for containing a powder 18 to be sintered.
- a means 20 may be positioned on apparatus 10 for spreading measured layers of powder 18 atop table 14 within the sintering cavity.
- Powder 18, which comprises a three-part blend as described above, is used in the present process to build up a preform shape of the desired part 15.
- Means 20 may be used to spread a thin layer (approximately 0.001" to 0.020", for example) of powder 18 atop table 14, which is initially positioned just below the top of walls 12.
- Table 14 may be heated with coils 16 to bring the temperature of blended powder 18 to a desired level below the melting point of the polymer binder constituent.
- a beam 22 from a laser 24 is scanned over the layer of blended powder 18, typically as directed by a computer processor 25 having computer aided design (CAD) data for part 15, to perform selective laser sintering of powder 18.
- CAD computer aided design
- beam 22 is provided by a laser in the infrared or near infrared region, although any focused beam of energy that is sufficiently intense to generate precise, localized heating may be used.
- the SLS process causes localized melting of the polymer constituent of the layer of blended powder 18 as it is scanned by laser beam 22. The melted polymer rapidly resolidifies to bind the metal constituents of powder 18 with connecting necks or bridges between metal particles.
- table 14 is lowered a predetermined increment, a new layer of powder 18 is spread atop the previous layer, and the SLS process is repeated to build up part 15 layer-by-layer according to the design plan provided by computer processor 25.
- blended powder 18 An important aspect of the present invention, compared to conventional SLS of 100% polymer powders, is the use of a relatively small volume fraction of polymer binder (about 5-15%, for example) in blended powder 18.
- the polymer constituent of blended powder 18 comprises a fine, high purity, spherical particle nylon powder having an average particle size in the range of approximately 3-8 ⁇ m.
- Blended powder 18, formulated as described above, has the following attributes: (1) excellent flow characteristics in SLS apparatus 10; (2) excellent laser sintering characteristics, with less thermal distortion and higher repeatability between builds compared with conventional 100% polymer powders (resulting from higher thermal conductivity of the metal content of blended powder 18); (3) high metal volume fraction in the "green" preform part (i.e., prior to densification) resulting from the low volume fraction of polymer binder, excellent powder flow characteristics, and high tap-density provided by an all-spherical, controlled size distribution powder blend; and (4) high dimensional tolerance, surface finish, and robustness of the polymer bound preform part 15 due to the strong bridging behavior of the liquid polymer binder between metal particles under natural surface tension forces.
- built-up preform part 15 is removed from SLS apparatus 10. Elimination of the polymer binder constituent from preform part 15 may be achieved by placing part 15 in a vacuum furnace at elevated temperature (about 300-500°C, for example) and low atmospheric pressure.
- the use of a low volume fraction of the preferred high purity nylon binder has the advantages of (a) very low contamination of the base metal from binder residue (mainly carbon) due to high purity of the initial nylon powder, and (b) relatively rapid outgassing with minimal physical damage to porous preform part 15 due to the low volume fraction of nylon and its preferential location as bridges across metal particle contact points.
- the polymer sintered powder morphology of the present process provides open, connected pores for easy flow of the nylon vapor to the surface of preform part 15 during the vacuum furnace outgassing process without build up of local pockets of vapor pressure that could damage preform part 15.
- a support powder may be used to surround preform part 15 during the densification process.
- suitable support powders for part 15 include ceramic powders, such as yttria, zirconia, silicon nitride, and boron nitride, and metal powders having a ceramic surface coating, such as nickel aluminide (Ni 3 Al) powder with a nitrided surface, for example.
- the supporting powder comprises fine, spherical grains to flow easily, ensure uniform heating during densification, and provide continuous support for all regions to prevent cracking or slumping of part 15 under gravitational forces.
- the supporting powder should possess sufficient thermal conductivity to provide uniform heating, be non-reactive with metal part 15, and be non-agglomerating at the temperatures required for the transient liquid sintering process. Non-uniform heating of part 15 can cause cracking due to unequal shrinkage during the densification process. Agglomeration can cause excess support powder to become trapped in cavities and result in stress cracking of densifying part 15.
- Uniform heat transfer and sustained support for densifying part 15 can be enhanced by providing the support powder in a gently fluidized bed, which can be produced by either a mechanical stirring action or a recirculating gas.
- a recirculating gas should be selected so as to not hinder (and preferably to enhance) the transient liquid sintering process.
- a gas mixture of methane, hydrogen, and nitrogen for example, will enhance the sintering rate and increase the hardness of a ferrous or nickel alloy part.
- An ideal powder for a fluidized medium is a material with a similar or slightly lower density than that of the part to be heat treated in the transient liquid sintering process.
- a fluidized heat treatment bed for a nickel or steel alloy part for example, can be provided by a nickel aluminide powder that has been treated to provide a thick surface nitride coating on the nickel aluminide powder particles.
- An alternate method of providing support for preform part 15 is to fabricate preform ("green") support tooling (i.e., structurally supporting shapes), illustrated in Figure 1 as shapes 28.
- Green support shapes 28 may be fabricated by SLS at the same time as preform part 15 by using volumes of blended powder 18 not needed for part 15. If powder 18 comprises an expensive alloy powder and the support tooling requires large volumes, the support tooling can be made in a separate SLS process using a less expensive alloy powder.
- the green support shapes 28 may be sprayed with a fine coating of a release agent, such as alumina or yttria powder, for example, to prevent supporting shapes 28 from adhering to preform part 15 during the transient liquid sintering densification process.
- the green shapes 28, which comprise material having the same shrink rate as the preform part (or substantially the same shrink rate if a less expensive alloy is used), are placed under and around part 15 as necessary to provide structural support during the densification process.
- the lower melting temperature constituent of the metal powder blend is prealloyed with the base alloy composition so as to melt quickly and uniformly when the liquid phase sintering temperature is exceeded.
- Elemental powders of a melting point depressant material generally do not provide sufficiently rapid melting.
- Prealloyed low melting temperature powders having an alloy composition different from the base alloy composition generally produce a non-homogeneous composition and microstructure in the densified part, resulting in poor mechanical properties.
- the low melting temperature constituent is in the form of a separate powder with particle size similar to that of the base metal powder so that the two metal powders may be blended efficiently by conventional mechanical mixing techniques, and the surface contact area between the base metal powder and the lower melting temperature powder is minimized to reduce interdiffusion and ensure effective melting at the transient liquid sintering temperature.
- Use of a base metal powder with a coating of the lower melting temperature constituent is less effective because the larger contact area of the powder coating (as compared with discrete powder particles) allows excessive interdiffusion and dilution of the melting point lowering element prior to reaching the transient liquid sintering temperature.
- the same vacuum furnace used for eliminating the polymer binder may be used for transient liquid sintering and densification of part 15 by controlled heat treatment. Specific heat up rates and isothermal hold times within a narrow temperature range cause transient liquid sintering of part 15 to near full density with sufficiently controlled and repeatable shrinkage to produce desired shape and dimensional tolerances for net-shape part 15.
- the critical material constituent for this stage of the process is the lower melting temperature powder, which typically comprises the base metal alloy (about 5-15% of the total volume) with an alloying addition (such as about 3-4% boron, for example) to lower the melting point of the base alloy by approximately 300-400°C.
- the maximum isothermal hold temperature for transient liquid sintering of part 15 is above the melting point of the lower temperature (e.g., borided) alloy but below the melting point of the base metal alloy.
- Advantages of using a lower melting temperature alloy for liquid phase sintering include the following: (1) only about 5-15% of the total metal powder melts so that collapse of fragile elements of the part under gravity is less likely (compared to the case of liquid phase sintering of the base metal alone, where all of the powder particles are partially melted); (2) sintering occurs at approximately 200-400°C lower than the melting point of the base metal alone, which provides a superior microstructure (compared to the undesirable microstructural coarsening in unmelted base metal at the higher temperatures) and has significant economic benefits with respect to furnace equipment; and (3) resolidification (in the borided case) is by isothermal dilution of boron in the liquid (i.e., by diffusion of boron into the solid base metal powder
- preform part 15 and green support shapes 28 may be placed on a smooth, low friction plate comprising a material such as boron nitride or machined graphite, for example.
- a smooth, low friction plate comprising a material such as boron nitride or machined graphite, for example.
- HIP treatment may be necessary to close residual porosity and complete chemical homogenization of the part, particularly with respect to the temperature lowering component of the alloy (e.g., boron). Elimination of residual porosity is important to improve fatigue properties of part 15. Homogenization of the boron content can improve the properties of ambient temperature ductility, toughness, and high temperature strength.
- a final HIP treatment may be necessary to optimize final mechanical properties of part 15.
- HIP tooling or bagging is not required because residual porosity is isolated and not surface connected (thus allowing part complexity and features, such as surface connected internal channels and cavities, that are not producible in a monolithic part by any other method); and (2) the transient liquid wets all base metal powder particles, effectively scrubbing off surface oxides and other contaminants prior to resolidification.
- the elimination of particle surface oxides and contaminants is beneficial because their presence generally causes significant reduction of fatigue and fracture properties in directly HIP treated powders.
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US530770 | 1990-05-29 | ||
US08/530,770 US5745834A (en) | 1995-09-19 | 1995-09-19 | Free form fabrication of metallic components |
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EP0764487A1 true EP0764487A1 (fr) | 1997-03-26 |
EP0764487B1 EP0764487B1 (fr) | 1999-12-08 |
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US (1) | US5745834A (fr) |
EP (1) | EP0764487B1 (fr) |
JP (1) | JP3660069B2 (fr) |
CA (1) | CA2178884C (fr) |
DE (1) | DE69605509T2 (fr) |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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GB201017692D0 (en) | 2010-10-20 | 2010-12-01 | Materials Solutions | Heat treatments of ALM formed metal mixes to form super alloys |
US8986604B2 (en) * | 2010-10-20 | 2015-03-24 | Materials Solutions | Heat treatments of ALM formed metal mixes to form super alloys |
US9968376B2 (en) | 2010-11-29 | 2018-05-15 | Biomet Manufacturing, Llc | Patient-specific orthopedic instruments |
US8858869B2 (en) | 2011-02-04 | 2014-10-14 | Aerojet Rocketdyne Of De, Inc. | Method for treating a porous article |
US9085980B2 (en) | 2011-03-04 | 2015-07-21 | Honeywell International Inc. | Methods for repairing turbine components |
US9241745B2 (en) | 2011-03-07 | 2016-01-26 | Biomet Manufacturing, Llc | Patient-specific femoral version guide |
US8715289B2 (en) | 2011-04-15 | 2014-05-06 | Biomet Manufacturing, Llc | Patient-specific numerically controlled instrument |
US8956364B2 (en) | 2011-04-29 | 2015-02-17 | Biomet Manufacturing, Llc | Patient-specific partial knee guides and other instruments |
US8668700B2 (en) | 2011-04-29 | 2014-03-11 | Biomet Manufacturing, Llc | Patient-specific convertible guides |
US8532807B2 (en) | 2011-06-06 | 2013-09-10 | Biomet Manufacturing, Llc | Pre-operative planning and manufacturing method for orthopedic procedure |
US9084618B2 (en) | 2011-06-13 | 2015-07-21 | Biomet Manufacturing, Llc | Drill guides for confirming alignment of patient-specific alignment guides |
US8691333B2 (en) | 2011-06-28 | 2014-04-08 | Honeywell International Inc. | Methods for manufacturing engine components with structural bridge devices |
US8764760B2 (en) | 2011-07-01 | 2014-07-01 | Biomet Manufacturing, Llc | Patient-specific bone-cutting guidance instruments and methods |
US20130001121A1 (en) | 2011-07-01 | 2013-01-03 | Biomet Manufacturing Corp. | Backup kit for a patient-specific arthroplasty kit assembly |
US8597365B2 (en) | 2011-08-04 | 2013-12-03 | Biomet Manufacturing, Llc | Patient-specific pelvic implants for acetabular reconstruction |
US9066734B2 (en) | 2011-08-31 | 2015-06-30 | Biomet Manufacturing, Llc | Patient-specific sacroiliac guides and associated methods |
US9295497B2 (en) | 2011-08-31 | 2016-03-29 | Biomet Manufacturing, Llc | Patient-specific sacroiliac and pedicle guides |
US8506836B2 (en) | 2011-09-16 | 2013-08-13 | Honeywell International Inc. | Methods for manufacturing components from articles formed by additive-manufacturing processes |
US20130075513A1 (en) * | 2011-09-26 | 2013-03-28 | Siemens Industry, Inc. | Rolling mill coil forming laying head with path or pipe having dissimilar materials composite construction |
US9386993B2 (en) | 2011-09-29 | 2016-07-12 | Biomet Manufacturing, Llc | Patient-specific femoroacetabular impingement instruments and methods |
US9301812B2 (en) | 2011-10-27 | 2016-04-05 | Biomet Manufacturing, Llc | Methods for patient-specific shoulder arthroplasty |
US9554910B2 (en) | 2011-10-27 | 2017-01-31 | Biomet Manufacturing, Llc | Patient-specific glenoid guide and implants |
US9451973B2 (en) | 2011-10-27 | 2016-09-27 | Biomet Manufacturing, Llc | Patient specific glenoid guide |
KR20130046336A (ko) | 2011-10-27 | 2013-05-07 | 삼성전자주식회사 | 디스플레이장치의 멀티뷰 디바이스 및 그 제어방법과, 디스플레이 시스템 |
EP2770918B1 (fr) | 2011-10-27 | 2017-07-19 | Biomet Manufacturing, LLC | Guides glénoïdes spécifiques d'un patient |
EP2790858B1 (fr) * | 2011-12-14 | 2017-02-08 | General Electric Technology GmbH | Procédé de fabrication additive d'un article composé d'un matériau difficile à souder |
US9266170B2 (en) | 2012-01-27 | 2016-02-23 | Honeywell International Inc. | Multi-material turbine components |
US9237950B2 (en) | 2012-02-02 | 2016-01-19 | Biomet Manufacturing, Llc | Implant with patient-specific porous structure |
GB201209415D0 (en) * | 2012-05-28 | 2012-07-11 | Renishaw Plc | Manufacture of metal articles |
FR2993801B1 (fr) * | 2012-07-30 | 2014-08-22 | Phenix Systems | Procede de realisation d'un objet tridimensionnel |
US9120151B2 (en) | 2012-08-01 | 2015-09-01 | Honeywell International Inc. | Methods for manufacturing titanium aluminide components from articles formed by consolidation processes |
GB201213940D0 (en) | 2012-08-06 | 2012-09-19 | Materials Solutions | Additive manufacturing |
US20140076749A1 (en) * | 2012-09-14 | 2014-03-20 | Raytheon Company | Variable density desiccator housing and method of manufacturing |
US9550349B1 (en) * | 2012-10-31 | 2017-01-24 | The Boeing Company | System and method for additive fabrication using laminated sheets |
US9204977B2 (en) | 2012-12-11 | 2015-12-08 | Biomet Manufacturing, Llc | Patient-specific acetabular guide for anterior approach |
US9060788B2 (en) | 2012-12-11 | 2015-06-23 | Biomet Manufacturing, Llc | Patient-specific acetabular guide for anterior approach |
US10622244B2 (en) | 2013-02-18 | 2020-04-14 | Orbotech Ltd. | Pulsed-mode direct-write laser metallization |
CN105009695B (zh) | 2013-02-18 | 2018-09-18 | 奥博泰克有限公司 | 两步直接刻写激光金属化 |
US9839438B2 (en) | 2013-03-11 | 2017-12-12 | Biomet Manufacturing, Llc | Patient-specific glenoid guide with a reusable guide holder |
US9579107B2 (en) | 2013-03-12 | 2017-02-28 | Biomet Manufacturing, Llc | Multi-point fit for patient specific guide |
US9498233B2 (en) | 2013-03-13 | 2016-11-22 | Biomet Manufacturing, Llc. | Universal acetabular guide and associated hardware |
US9826981B2 (en) | 2013-03-13 | 2017-11-28 | Biomet Manufacturing, Llc | Tangential fit of patient-specific guides |
US9517145B2 (en) | 2013-03-15 | 2016-12-13 | Biomet Manufacturing, Llc | Guide alignment system and method |
CN104057083B (zh) * | 2013-03-22 | 2016-02-24 | 通用电气公司 | 用于制造以高熔点金属材料为基材的零件的方法 |
US20160083303A1 (en) * | 2013-04-25 | 2016-03-24 | United Technologies Corporation | Additive manufacturing of ceramic turbine components by transient liquid phase bonding using metal or ceramic binders |
US20160083304A1 (en) * | 2013-04-25 | 2016-03-24 | United Technologies Corporation | Additive manufacturing of ceramic turbine components by partial transient liquid phase bonding using metal binders |
EP2813432B1 (fr) * | 2013-06-13 | 2017-12-20 | Airbus Operations GmbH | Procédé d'installation d'un élément de fixation |
GB2515287A (en) * | 2013-06-17 | 2014-12-24 | Rolls Royce Plc | An Additive Layer Manufacturing Method |
US10537027B2 (en) | 2013-08-02 | 2020-01-14 | Orbotech Ltd. | Method producing a conductive path on a substrate |
US20150112349A1 (en) | 2013-10-21 | 2015-04-23 | Biomet Manufacturing, Llc | Ligament Guide Registration |
EP3071352B1 (fr) * | 2013-11-19 | 2023-12-27 | RTX Corporation | Procédé de fabrication d'un article composite métal-céramique |
DE112014006475B4 (de) | 2014-03-18 | 2022-08-25 | Kabushiki Kaisha Toshiba | Herstellungsverfahren für eine Stapelformation |
US9896944B2 (en) * | 2014-04-18 | 2018-02-20 | Siemens Energy, Inc. | Forming a secondary structure directly onto a turbine blade |
US10282488B2 (en) | 2014-04-25 | 2019-05-07 | Biomet Manufacturing, Llc | HTO guide with optional guided ACL/PCL tunnels |
US9408616B2 (en) | 2014-05-12 | 2016-08-09 | Biomet Manufacturing, Llc | Humeral cut guide |
JP5943963B2 (ja) * | 2014-05-20 | 2016-07-05 | 有限会社 ナプラ | 三次元造形用材料、及び、三次元造形方法 |
US9839436B2 (en) | 2014-06-03 | 2017-12-12 | Biomet Manufacturing, Llc | Patient-specific glenoid depth control |
US9561040B2 (en) | 2014-06-03 | 2017-02-07 | Biomet Manufacturing, Llc | Patient-specific glenoid depth control |
CN108436082A (zh) | 2014-06-20 | 2018-08-24 | 维洛3D公司 | 用于三维打印的设备、系统和方法 |
WO2016022133A1 (fr) * | 2014-08-07 | 2016-02-11 | Halliburton Energy Services, Inc. | Procédé de fabrication d'objets comprenant un ou plusieurs carbures |
US9833245B2 (en) | 2014-09-29 | 2017-12-05 | Biomet Sports Medicine, Llc | Tibial tubercule osteotomy |
US9826994B2 (en) | 2014-09-29 | 2017-11-28 | Biomet Manufacturing, Llc | Adjustable glenoid pin insertion guide |
CN107073820A (zh) * | 2014-10-15 | 2017-08-18 | 艾克斯温有限责任公司 | 用于控制三维打印制品的空腔在热处理期间的翘曲的方法 |
US10022792B2 (en) | 2014-11-13 | 2018-07-17 | The Indian Institute of Technology | Process of dough forming of polymer-metal blend suitable for shape forming |
WO2016094827A1 (fr) * | 2014-12-12 | 2016-06-16 | Velo3D, Inc. | Systèmes d'asservissement pour l'impression en trois dimensions |
JP6515557B2 (ja) | 2015-02-04 | 2019-05-22 | セイコーエプソン株式会社 | 三次元造形物製造用部材、三次元造形物製造装置、三次元造形物の製造方法および三次元造形物 |
US9820868B2 (en) | 2015-03-30 | 2017-11-21 | Biomet Manufacturing, Llc | Method and apparatus for a pin apparatus |
JP2018519412A (ja) * | 2015-06-15 | 2018-07-19 | ノースロップ グルマン システムズ コーポレーションNorthrop Grumman Systems Corporation | パウダーベッドレーザープロセスによって付加製造される高強度アルミニウム |
US10226262B2 (en) | 2015-06-25 | 2019-03-12 | Biomet Manufacturing, Llc | Patient-specific humeral guide designs |
US10568647B2 (en) | 2015-06-25 | 2020-02-25 | Biomet Manufacturing, Llc | Patient-specific humeral guide designs |
GB201514801D0 (en) | 2015-08-20 | 2015-10-07 | Rolls Royce Plc And Rolls Royce Deutschland Ltd & Co Kg | Method of manufacture of a turbine component |
EP3352985A4 (fr) * | 2015-09-21 | 2019-07-31 | The Nanosteel Company, Inc. | Matériaux ferreux séparés infiltrés |
US10065270B2 (en) | 2015-11-06 | 2018-09-04 | Velo3D, Inc. | Three-dimensional printing in real time |
US10286603B2 (en) | 2015-12-10 | 2019-05-14 | Velo3D, Inc. | Skillful three-dimensional printing |
CN108472787B (zh) * | 2016-01-21 | 2021-07-16 | 3M创新有限公司 | 制备金属粘结和玻璃状粘结磨料制品以及磨料制品前体的方法 |
JP6836101B2 (ja) | 2016-01-22 | 2021-02-24 | セイコーエプソン株式会社 | 三次元造形物の製造方法 |
JP6676984B2 (ja) * | 2016-01-29 | 2020-04-08 | セイコーエプソン株式会社 | 三次元造形物の製造方法 |
CN113628857B (zh) * | 2016-02-01 | 2024-03-08 | 株式会社村田制作所 | 线圈部件及其制造方法 |
US10434573B2 (en) | 2016-02-18 | 2019-10-08 | Velo3D, Inc. | Accurate three-dimensional printing |
WO2017147434A1 (fr) * | 2016-02-26 | 2017-08-31 | Trio Labs, Inc. | Procédé et appareil de fabrication en forme libre solide d'objets à l'aide de l'infusion in situ |
JP7177704B2 (ja) * | 2016-03-03 | 2022-11-24 | ヴェロクシント コーポレイション | 付加製造を用いたナノ結晶物品の作成方法 |
WO2017173009A1 (fr) | 2016-03-30 | 2017-10-05 | 3M Innovative Properties Company | Procédé de réalisation d'articles abrasifs à liaison métallique et à liaison vitreuse, et précurseurs d'articles abrasifs |
US9833839B2 (en) * | 2016-04-14 | 2017-12-05 | Desktop Metal, Inc. | Fabricating an interface layer for removable support |
EP3374164A4 (fr) * | 2016-04-27 | 2019-07-17 | Hewlett-Packard Development Company, L.P. | Composition comprenant un matériau de construction à température de fusion élevée |
US11691343B2 (en) | 2016-06-29 | 2023-07-04 | Velo3D, Inc. | Three-dimensional printing and three-dimensional printers |
US10286452B2 (en) | 2016-06-29 | 2019-05-14 | Velo3D, Inc. | Three-dimensional printing and three-dimensional printers |
US10323761B2 (en) | 2016-08-26 | 2019-06-18 | The Boeing Company | Guide vane check valves |
US20180095450A1 (en) | 2016-09-30 | 2018-04-05 | Velo3D, Inc. | Three-dimensional objects and their formation |
WO2018128695A2 (fr) | 2016-11-07 | 2018-07-12 | Velo3D, Inc. | Écoulement des gaz lors de l'impression en trois dimensions |
US10800108B2 (en) | 2016-12-02 | 2020-10-13 | Markforged, Inc. | Sinterable separation material in additive manufacturing |
US10828698B2 (en) | 2016-12-06 | 2020-11-10 | Markforged, Inc. | Additive manufacturing with heat-flexed material feeding |
US20180186080A1 (en) | 2017-01-05 | 2018-07-05 | Velo3D, Inc. | Optics in three-dimensional printing |
US10533666B2 (en) | 2017-01-12 | 2020-01-14 | The Boeing Company | Sealing structures and valve assemblies including the sealing structures |
EP3585915A1 (fr) | 2017-02-24 | 2020-01-01 | Innomaq 21, S.L. | Procédé de fabrication économique de composants légers |
US10888925B2 (en) | 2017-03-02 | 2021-01-12 | Velo3D, Inc. | Three-dimensional printing of three-dimensional objects |
US10722310B2 (en) | 2017-03-13 | 2020-07-28 | Zimmer Biomet CMF and Thoracic, LLC | Virtual surgery planning system and method |
WO2018183396A1 (fr) | 2017-03-28 | 2018-10-04 | Velo3D, Inc. | Manipulation de matériau dans une impression tridimensionnelle |
DE102017207210A1 (de) | 2017-04-28 | 2018-10-31 | Skz-Kfe Ggmbh | Verfahren zur additiven Herstellung eines Bauteils sowie additiv hergestelltes Bauteil |
CN107225245B (zh) * | 2017-07-25 | 2023-02-10 | 南华大学 | 金属粉末3d激光成型铺粉装置及成型方法 |
US10914495B2 (en) | 2017-09-18 | 2021-02-09 | The Boeing Company | Apparatus for heat transfer, utilizing the Joule Thomson (JT) effect, for crowning upon heat-emitting devices |
US10272525B1 (en) | 2017-12-27 | 2019-04-30 | Velo3D, Inc. | Three-dimensional printing systems and methods of their use |
US10144176B1 (en) | 2018-01-15 | 2018-12-04 | Velo3D, Inc. | Three-dimensional printing systems and methods of their use |
KR102112725B1 (ko) * | 2018-08-14 | 2020-05-19 | 서울대학교산학협력단 | 분산강화 금속 소결체의 제조방법 |
US11027254B1 (en) | 2018-09-10 | 2021-06-08 | Consolidated Nuclear Security, LLC | Additive manufacturing of mixed-metal parts using sol-gel feed materials |
US11623387B2 (en) * | 2018-11-09 | 2023-04-11 | Effusiontech Ip Pty. Ltd. | Method of spray forming an object |
US11618212B2 (en) * | 2019-03-20 | 2023-04-04 | Desktop Metal, Inc. | Additive fabrication of sinterable metallic parts via application of directed energy |
WO2020240535A1 (fr) * | 2019-05-30 | 2020-12-03 | Stratasys Ltd. | Procédé de conservation de forme d'un objet pendant le frittage |
KR20220031745A (ko) | 2019-07-26 | 2022-03-11 | 벨로3디, 인크. | 3차원 물체 형상화에 대한 품질 보증 |
US11462344B2 (en) | 2019-07-30 | 2022-10-04 | General Electric Company | Method of heat-treating additively-manufactured ferromagnetic components |
US12070881B2 (en) | 2019-09-19 | 2024-08-27 | Flow International Corporation | Systems and methods of interim and end of process treatment of manufactured articles using high pressure and waterjets |
US11701710B2 (en) * | 2020-01-10 | 2023-07-18 | Markforged, Inc. | System, apparatus, and methods for managing sintering supports |
WO2021188638A1 (fr) * | 2020-03-18 | 2021-09-23 | Holo, Inc. | Compositions et procédés d'impression tridimensionnelle de particules |
US20230191693A1 (en) * | 2020-06-10 | 2023-06-22 | Alloy Enterprises, Inc. | Bonding methods for laminated light alloy parts |
JP2023541842A (ja) * | 2020-09-10 | 2023-10-04 | スウェージロック カンパニー | 付加製造物品及び材料の低温表面硬化ならびに表面改質の標的塗布 |
WO2022103868A1 (fr) | 2020-11-10 | 2022-05-19 | Greenheck Fan Corporation | Ensemble ventilateur efficace |
CN116061433A (zh) * | 2023-01-09 | 2023-05-05 | 清华大学 | 成型装置和成型方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992010343A1 (fr) * | 1990-12-07 | 1992-06-25 | Board Of Regents, The University Of Texas System | Fabrication de pieces par formation composite de poudres precurseurs |
US5342573A (en) * | 1991-04-23 | 1994-08-30 | Sumitomo Electric Industries, Ltd. | Method of producing a tungsten heavy alloy product |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5155324A (en) * | 1986-10-17 | 1992-10-13 | Deckard Carl R | Method for selective laser sintering with layerwise cross-scanning |
US5017753A (en) * | 1986-10-17 | 1991-05-21 | Board Of Regents, The University Of Texas System | Method and apparatus for producing parts by selective sintering |
US4927992A (en) * | 1987-03-04 | 1990-05-22 | Westinghouse Electric Corp. | Energy beam casting of metal articles |
JPH0730362B2 (ja) * | 1987-03-20 | 1995-04-05 | 株式会社日立製作所 | 電子部品及びその製造方法 |
US5182170A (en) * | 1989-09-05 | 1993-01-26 | Board Of Regents, The University Of Texas System | Method of producing parts by selective beam interaction of powder with gas phase reactant |
US5316720A (en) * | 1992-11-20 | 1994-05-31 | Rockwell International Corporation | Laser shock and sintering method for particulate densification |
US5393482A (en) * | 1993-10-20 | 1995-02-28 | United Technologies Corporation | Method for performing multiple beam laser sintering employing focussed and defocussed laser beams |
-
1995
- 1995-09-19 US US08/530,770 patent/US5745834A/en not_active Expired - Lifetime
-
1996
- 1996-06-12 CA CA002178884A patent/CA2178884C/fr not_active Expired - Fee Related
- 1996-07-17 EP EP96111522A patent/EP0764487B1/fr not_active Expired - Lifetime
- 1996-07-17 DE DE69605509T patent/DE69605509T2/de not_active Expired - Lifetime
- 1996-09-17 JP JP24471296A patent/JP3660069B2/ja not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992010343A1 (fr) * | 1990-12-07 | 1992-06-25 | Board Of Regents, The University Of Texas System | Fabrication de pieces par formation composite de poudres precurseurs |
US5342573A (en) * | 1991-04-23 | 1994-08-30 | Sumitomo Electric Industries, Ltd. | Method of producing a tungsten heavy alloy product |
Cited By (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0916437A1 (fr) * | 1997-11-11 | 1999-05-19 | Rockwell Science Center, LLC | Préparation de métal in situ à l'aide d'un précurseur de carbone pour lier la préforme et réagir avec un élément réducteur eutectique par frittage en phase liquide dans la zone supersolidus |
WO1999064190A1 (fr) * | 1998-06-12 | 1999-12-16 | 3D Systems, Inc. | Appareil et procede pour la fabrication d'articles refractaires moules |
WO2000053359A2 (fr) * | 1999-03-06 | 2000-09-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Matiere pour la fabrication par couches d'outils, de formes ou de pieces par le frittage laser |
WO2000053359A3 (fr) * | 1999-03-06 | 2001-05-31 | Fraunhofer Ges Forschung | Matiere pour la fabrication par couches d'outils, de formes ou de pieces par le frittage laser |
WO2001098006A2 (fr) * | 2000-06-20 | 2001-12-27 | Rockwell Technologies, Llc | Procede de renforcement pour comprimes crus fabriques a partir d'une poudre metallique |
WO2001098006A3 (fr) * | 2000-06-20 | 2002-03-21 | Rockwell Tech Llc | Procede de renforcement pour comprimes crus fabriques a partir d'une poudre metallique |
WO2002011928A1 (fr) * | 2000-08-07 | 2002-02-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Procede de fabrication de composants de precision par sinterisation au laser |
WO2002011929A1 (fr) * | 2000-08-07 | 2002-02-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Procede de production de pieces precises par frittage laser |
WO2002060635A1 (fr) * | 2001-02-02 | 2002-08-08 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Procede et dispositif de fusion selective au laser de matieres metalliques |
WO2002092264A1 (fr) * | 2001-05-11 | 2002-11-21 | Iuc Karlskoga Ab | Melange de poudre metallique |
WO2003049926A2 (fr) * | 2001-12-11 | 2003-06-19 | Trumpf Werkzeugmaschinen Gmbh & Co. Kg | Procede et dispositif de production d'un composant tridimensionnel compose de plusieurs couches |
WO2003049926A3 (fr) * | 2001-12-11 | 2004-04-08 | Trumpf Werkzeugmaschinen Gmbh | Procede et dispositif de production d'un composant tridimensionnel compose de plusieurs couches |
WO2003059555A2 (fr) * | 2002-01-15 | 2003-07-24 | Quebec Metal Powders Limited | Articles ferreux frittés utilisant un lit fluidisé |
WO2003059555A3 (fr) * | 2002-01-15 | 2003-12-18 | Quebec Metal Powders Ltd | Articles ferreux frittés utilisant un lit fluidisé |
WO2005025781A1 (fr) * | 2003-09-15 | 2005-03-24 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Plaque support pour un procede de moulage en 3d |
EP2509762A1 (fr) * | 2009-12-08 | 2012-10-17 | Husky Injection Molding Systems S.A. | Système à canaux chauffés comprenant un ensemble de collecteur fabriqué selon un procédé de fabrication à forme libre |
EP2509762A4 (fr) * | 2009-12-08 | 2014-02-26 | Husky Injection Molding | Système à canaux chauffés comprenant un ensemble de collecteur fabriqué selon un procédé de fabrication à forme libre |
US9283593B2 (en) | 2011-01-13 | 2016-03-15 | Siemens Energy, Inc. | Selective laser melting / sintering using powdered flux |
US8778255B2 (en) * | 2011-08-01 | 2014-07-15 | Mtu Aero Engines Gmbh | Method for generatively manufacturing a component with at least one mark |
US20130196118A1 (en) * | 2011-08-01 | 2013-08-01 | Mtu Aero Engines | Generatively manufactured component with at least one mark and method for forming, repairing and/or replacing such a component |
WO2013017144A1 (fr) * | 2011-08-01 | 2013-02-07 | Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. . | Procédé de fabrication d'un miroir comprenant au moins une cavité et un miroir optique |
US9599756B2 (en) | 2011-08-01 | 2017-03-21 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method for manufacturing a mirror comprising at least one cavity and optical mirror |
WO2013124649A1 (fr) * | 2012-02-24 | 2013-08-29 | Charles Malcolm Ward-Close | Traitement d'objets métallique ou d'alliage |
WO2014120991A1 (fr) * | 2013-01-31 | 2014-08-07 | Siemens Energy, Inc. | Fusion/frittage par laser de manière sélective en utilisant du flux en poudre |
US10190220B2 (en) | 2013-01-31 | 2019-01-29 | Siemens Energy, Inc. | Functional based repair of superalloy components |
CN105431250A (zh) * | 2013-08-01 | 2016-03-23 | 西门子能源公司 | 通过粉末合金和焊剂材料添加的超合金部件修复 |
KR20160036060A (ko) * | 2013-08-01 | 2016-04-01 | 지멘스 에너지, 인코포레이티드 | 분말식 합금 및 용재 재료의 추가에 의한 초합금 구성요소의 보수 |
CN105431250B (zh) * | 2013-08-01 | 2020-02-14 | 西门子能源公司 | 通过粉末合金和焊剂材料添加的超合金部件修复 |
US11802321B2 (en) | 2015-03-17 | 2023-10-31 | Elementum 3D, Inc. | Additive manufacturing of metal alloys and metal alloy matrix composites |
US10507638B2 (en) | 2015-03-17 | 2019-12-17 | Elementum 3D, Inc. | Reactive additive manufacturing |
WO2016175832A1 (fr) * | 2015-04-30 | 2016-11-03 | Hewlett-Packard Development Company, L.P. | Impression en trois dimensions (3d) |
US10576685B2 (en) | 2015-04-30 | 2020-03-03 | Hewlett-Packard Development Company, L.P. | Three-dimensional (3D) printing |
EP3162468A1 (fr) * | 2015-10-15 | 2017-05-03 | Seiko Epson Corporation | Procédé de fabrication d'un objet formé en trois dimensions et appareil de fabrication d'objet formé en trois dimensions |
EP3159082A1 (fr) * | 2015-10-15 | 2017-04-26 | Seiko Epson Corporation | Procédé de fabrication d'un objet formé en trois dimensions et appareil de fabrication d'objet formé en trois dimensions |
US11745418B2 (en) | 2015-10-15 | 2023-09-05 | Seiko Epson Corporation | Method of manufacturing three-dimensionally formed object and three-dimensionally formed object manufacturing apparatus |
WO2017077137A3 (fr) * | 2015-11-06 | 2017-07-06 | Innomaq 21, S.L. | Procédé de fabrication économique de pièces métalliques |
WO2017194535A1 (fr) * | 2016-05-10 | 2017-11-16 | Arcelik Anonim Sirketi | Matériau de production approprié pour être utilisé dans un dispositif d'impression 3d |
EP3548212A4 (fr) * | 2016-12-02 | 2020-09-30 | Markforged, Inc. | Pièces fabriquées de manière additive avec accélération de déliantage |
US11173550B2 (en) | 2016-12-02 | 2021-11-16 | Markforged, Inc. | Supports for sintering additively manufactured parts |
EP4000878A1 (fr) * | 2016-12-02 | 2022-05-25 | Markforged, Inc. | Supports pour frittage de pièces fabriquées par fabrication additive |
CN108746613A (zh) * | 2018-05-31 | 2018-11-06 | 华中科技大学 | 一种激光选区熔化在线热处理系统 |
CN109530695A (zh) * | 2018-12-20 | 2019-03-29 | 西安铂力特增材技术股份有限公司 | 一种用于增材制造高性能金属制件的方法 |
FR3095365A1 (fr) * | 2019-04-25 | 2020-10-30 | Safran | Support et systeme pour fabrication additive et procede de fabrication additive mettant en œuvre un tel support |
Also Published As
Publication number | Publication date |
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DE69605509T2 (de) | 2000-04-06 |
US5745834A (en) | 1998-04-28 |
JP3660069B2 (ja) | 2005-06-15 |
EP0764487B1 (fr) | 1999-12-08 |
CA2178884A1 (fr) | 1997-03-20 |
DE69605509D1 (de) | 2000-01-13 |
CA2178884C (fr) | 2007-01-16 |
JPH09111308A (ja) | 1997-04-28 |
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